Granted Patent
Utility
US 5,235,161 · App. 07/213,588
Detachable metallic safety guard for portable electric immersion heater
Inventors:
Donald W. Reusche, Thomas K. Reusche
Patented Case
View Patent ↗
Granted: Aug 10, 1993
Filed: Jun 30, 1988
Inventors
Donald W. Reusche
Thomas K. Reusche
Assignee (at issue)
Allied Precision Industries Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.